Credit Suisse's Future Uncertain Amidst Central Bank and Investor Concerns.

Credit Suisse's stock price and the cost of insuring its debt against default skyrocketed after the chairman of its largest shareholder, Saudi National Bank, said it would not put more money into the bank. However, Switzerland's central bank, the Swiss National Bank, said it would step in and provide support to Credit Suisse "if necessary." Credit Suisse has been struggling with losses and controversies, including involvement in money laundering and spying on former employees. The renewed concerns about Credit Suisse weighed heavily on global banks, as investors worried about their exposure to the Swiss firm.